Printing-press cylinder.



No. 786,031. v PATENTED MAR. 28, 1905. G. K. HENDERSON. PRINTING PRESSCYLINDER.

APPLICATION FILED MAR. l, 1904.

2 SHEETS-SHEET l.

w/TNEssEs.' /N VEA/Tof? A TTOHNE YS PATEN'IBD MAR. 28, 190,5.

G. K. HENDERSON. PRINTING PRESS CYLINDER.

APPLICATION FILED MAR. l, 1904.

2 SHEETS-SHEET 2.

l /NVE/vmf? o'eozyefjfenefson Y er www@ ATTORNEYS UNITED STATES PatentedMarch 28, 1905.

PATENT OEETCEo GEORGE KEVEN HENDERSON, OF NEW YORK, N. Y., ASSIGNOR OFONE- HALF TO FREDERICK 1V. NERGE, OF NEIV YORK, N. Y.

PRINTING-PRESS CYLINDER.

SPECIFICATION forming part of Letters Patent No. 786,031, dated March28, 1905.

Application tiled March l, 1904. Serial No. 196,045.

To all 7.077.071?, may concern:

Be it known that I, GEORGE KEvEN HEN- DERSON, a citizen of the UnitedStates, and a resident of the city of New York, borough of Brooklyn, inthe county of Kings and State ot' New York, have invented a new andImproved Printing-Press Cylinder, of which the following is a full,clear, and exact description.

This invention relates to improvements in IO press cylinders forprinting on roll-paper. In printing` on roll-paper the general method isto employ a g'rooved cylinder and clamps on a series of individualplates. This entails a separate register of each part of the whole form.Another method employed is to coat a tube with zinc or othercomposition, which requires a special transfer process and machinerytherefor.

rI`he object of my invention is to provide a cylinder for printing whichwill not have the undesirable features above mentioned, but will havethe advantage of employing' a speedy and economical system of using thinlatiexible plates of zinc or aluminium at present in use forlithographie or printing purposes and having simple and novel means forbringing the whole into exact register.

I will describe a printing-press cylinder embodying my invention andthen point out 30 the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a longitudinal section on the line 1 1 of Fig. 3 of aprinting-press cylinder embodying my invention. Fig. 2 is a longitudinalsection thereoi1 on the line 2 2 of Fig. 3. Fig. 3 is an end View. Fig.4 is an end View 40 with one end ring removed. Fig. 5 is a section onthe line 5 5 of Fig. 6, and Fig. 6 is a section on the line 6 6 of Fig'.5.

Referring to the drawings, 10 designates a cylinder having alongitudinal slot 11, through which the ends of the plate 0r plates areto be turned in the usual manner. At the center of the cylinder is aspider l1, and removably connected to the ends are spiders or rings l2.The supporting-shaft 13 for the cylinder ex- Vthe cylinder areguide-rods 15.

tends through these several spiders, and, as here shown, it is keyed tothe spider 11 by the key 14. Extended longitudinally through Theseg'uiderods pass loosely through openings in the end spiders and havescrew-tln'ead engagement with the -center spider,

Mounted to slide on the guide-rods 15 at opposite sides of the centerspider are carrierplates 16. As here shown, these plates 16 haveoutwardly-extended lugs 17, having perl Jforations through which therods 15 pass, and the two plates are connected, so as to move in unison,by means of a bridge-plate 18, this bridge-plate being arranged to passbetween the spokes of the center spider, and it is made removable fromthe plates 16, so that the several parts may be conveniently assembled.Each plate 16 has on its under side an interiorly threaded lug 19 forengaging the threaded portion of a screw -rod 20. The plates are alsoprovided with lug's 21, having' perforations through which the rod 20usually passes.

The rods 15 are prevented from rotary movement by means of keys 22,which engage in depressions at the ends of the rods and also in recessesformed in the wall of the perforations through which the ends of therods pass. The screw-rod 2O passes through openings in spokes of the endspiders and has collars 23 24 at one end for engaging', respectively, atthe outer and inner sides oi' one end spider, and at the opposite endthere are collars 25 26 for engaging with the opposite sides of theother end spider. As here shown, the collar 26 is provided with anextension 27, angular' in cross-section and designed to be engaged by awrench or other instrument for rotating the screw-rod.

Each plate 16 is provided at its under side with a recess 28, in whichworms 29 30 are arranged. 'l` hese worms have upward extensions 31,which have bearings in openings in the upper portions ofthe plates 16,and the upper exposed ends of these projections 31 are provided withslots in which a screw-d river may be engaged for turning the worms. The

lower portions of the worms have bearings in plates 32, removablyattached to the plates 16. The worms 29 and 30 engage, respectively,with rack portions 33 of tension-hooks 34 35, movable vertically throughthe plates 16 and designed to engage with the plate supported on thecylinder.

In the operation the carrier-plates 16 may be adjusted to any desiredposition within the cylinder by manipulating' the screw-rod 20, andafter engaging the tension-hooks with the plate on the cylinder they maybe moved downward to tighten the plate by rotating the worms.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A printing-press cylinder having a longitudinalslot, guide-rods extended lengthwise in the cylinder, carrier-platesadjustable on said guide-rods, tension-hooks movable vertically in thecarrier-plates and having rack portions, and yworms supported in theplates and engaging with said rack portions.

2. A printing-press cylinder having a longitudinal slot, guide-rodsextended lengthwise in said cylinder, carrier-plates movable on saidguide-rods and detachably connected one with the other, tension-hooksmovable in the plates, and worm-gearing' for adjusting' the hooks.

3. A printing-press cylinder having a longitudinal slot, guide-rodsextended lengthwise of said cylinder, carrier-plates movable on saidrods, a screw-rod for causing the movements of the plates, abridge-plate removably connected to the carrier-plates, and tensionhookscarried by the carrier-plates.

4. A printing-press cylinder having a longitudinal slot, a centralspider in the `cylinder, removable end spiders, a shaft extended throughthe several spiders, guide-rods extended through the several spiders andhaving threaded connection with the center spider, carrier-platesmovable on said rods, means for causing the movements of said plates,and tension-hooks carried by the plates.

5. A printing-press cylinder having a longitudinal slot, guide-rodsextended lengthwise through the cylinder, carrier-plates movable on saidrods, the said carrier-plates being recessed at the under side,tension-hooks movable vertically through said plates and having rackportions, worms arranged in the recesses and engaging with the rackportions of the hooks, the said worms having upwardly-extended bearingsadapted to be engaged by a turning tool,\and means for moving thecarrier-plates on lthe guide-rods.

6. The combination with a printing-press cylinder, of a printing-platetension device comprising a plate. a plurality of tensionhooks movablelengthwise in said plate, and worm mechanism carried by the plate foradjusting the hooks independently one of another.

1n testimony whereotl l have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE KEVEN HENDERSON.

Witnesses:

TIMOTHY BARRY, W. H. MCBEATH.

